Acustar rhymes with:
aerostar, amstar, apstar, canstar, cellstar, constar, crestar, earthstar, eurostar, firstar, flagstar, genstar, globalstar, goldstar, incstar, lodestar, minstar, morningstar, navistar, navstar, norstar, northstar, oberstar, primestar, sunstar, telstar, texstar, torstar, tristar, windstar, wordstar
Acustar sounds like:
accusatory, aciduria, actor, actuary, actuator, agitator, akhtar, ashtray, astaire, aster, astor, astore, astoria, astra, astray, astro, auchter, auster, austere, austria, austro, aztar